The only son of this marriage was Lentz Edmund Klotz, whose birth occurred in Mauch Chunk in 1850. His preliminary education was acquired in the common schools, and supplemented by study in the Lehigh University, where he pursued a course in civil engineering and was then graduated. He afterward assisted his father, who was interested in mining operations as a civil engineer. He became quite proficient in the line of his chosen vocation, and in business circles won an unassailable reputation, not only because of his skill and success, but also by reason of the straightforward, honorable business principles that he ever followed. His politcal support was given to the Democracy, and in his social affiliation he was a Mason, while he and his family attended the Episcopal church.

In 1879 Lentz E. Klotz was united in marriage to Emma E. Laubach, a daughter of the late Judge Joseph Laubach, of Bethlehem. Pennsylvania. Her mother bore the maiden name of Elizabeth Swartz and was a native of Northampton County.